Currently Being ModeratedJul 14, 2013 2:04 PM (in response to Mehr99)
Is your mouse turned on? Is there a green light on the bottom near the switch? Are your mouse batteries charged? Have you tried different batteries? Have you tried double-clicking the mouse to reconnect it? There is a manual for the wireless mouse and problem solving on the www.apple.com website. Click on "Manuals", then enter "magic mouse" in the search box. You'll get a link to the manual. Try there.
If all else fails, you may need a replacement.